Steam-boiler furnace.



No. 67!,055. Patented Apr. 2, 19m. .1. 0. monms;

STEAM BOIL'ERFURNAGE.

, (Application filed Oct. 27, 1900.) (mi Model.)

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UNTTED STATES PATENT JOHN ODEN MORRIS, OF RICHMOND, VIRGINIA, ASSIGNOR TO THE MORRIS SMOKELESS FURNAOE OOMPANY, OF PORTSMOUTH, VIRGINIA.

STEAIVl-BOILER FURNACE.

SPECIFICATION formingpart of Letters Patent No. 671,055, dated April. 2, 1901. Application filed October 27, 1900. fael'ial No. 3I,6S5. (No model.)

To (1.2 Z 1072,0111, it may concern: terial. Over the top of the combustion-cham- Be it known that I, JOHN ODEN MORRIS, a her 7 there is a roof 11, constructed from firecitizen of the United States, residing at Richbrick or other suitable refractory material. mend, in the county of Henrico and State of This refractory roof 11 is in contact with the 55 Virginia, have invented new and useful Imunder side of the steam-boiler 5 and is exprovements in Steam-Boiler Furnaces, of tended rearward from the bridge-Wall 2, as which the following is a specification. shown, to'prevent deposit of carbon on the This invention relates to steam-boiler furunder side of the boiler. As shown in Fig. 1, naces,and has foritsobjects to provide certain the refractory roof 11 may be extended rear- 60 1o improvements in the construction and arward over the entire substantially concaved rangement of the parts of the combustionportion 8 or concave bottom of the combuschamber whereby to secure complete combustion-chamber, or, as shown in Fig. 2, the rear tion of the smoke and other gaseous prodportion of said roof 11 may fall a little short nets of combustion and also to protect the ofcoveringthe wholeof thecombustiou-cham- 65 15 boiler and prevent deposit of carbon on the her. The purpose of this refractory roof 11 under side thereof, where it would be diffiis to protect the steam-boiler 5 and to prevent cult of combustion. t the deposit of carbon on the highly-heated For the purposes above indicated my inmetal surface of said boiler adjacent to the vention consists in the novel construction and combustion-chamber. It has been found that 70 2o combination of parts in a steam-boiler furany carbon deposited on the heated metal nace, as hereinafter described and claimed. under surface of the boiler will not be per- In the annexeddrawings, illustrating the fectly consumed and will tend to interfere invention, Figure 1 is a vertical longitudinal with the heating capacity of the boiler. section of a steam-boiler furnace constructed In the combustion-chamber7, in rear of the 75 in accordance with my improvements. Fig. bridge-wall 2,there is constructed afire-brick 2 is a similar view showing a slightly ditferarch 12, that dips toward the substantially out form of the invention, concaved portion 8 a sufficient distance to Like reference-numeralsindicatelike parts serve as a bai'iie to retard the passage outin both views. ward of the products of combustion, so that 80 The referencenumeral 1 designates the they shall be completely consumed. This walls of the furnace; 2, the bridge-wall; 3, baffie or arch 12 may be located at a greater the grate; 4, the opening for the fire-door, or less distance from the bridge-wall 2, acand 5 a steam-boiler of the horizontal type. cording to the draft that may be required.

Though I have illustrated my invention Forinst-ance, if the draft of the furnace-stack 85 more particularly with reference to a boiler is insufficent the baflie or arch 12 will be of the horizontal type, it will be understood, placed nearer to the bridge-wall 2, and, on the of course, that my improvements may be used other hand, if the draft is excessive the baffie with an upright or vertical boiler. or arch 12 will be placed farther from said In the bridge-wall 2 there is an opening 6 bridge-Wall. As shown in Fig. 1, the baffle 90 for the passage of products of combustion or arch 12 is located immediately above the from the bed of fuel and into the combustiondip of the substantially concaved portion 8, chamber 7, that is located at the rear. The while in Fig. 2 it is located slightly nearer the bottom of the combustion-chamber 7 is conbridge-wall 2, and in this case the substanstrncted, in the form, substantially, of a contially concaved portion 8 has a dip at its for- 5 cavity 8, from fire-brick or other suitable reward end instead of at the center. In every fractory material. At the rear of this subcase the refractory roof 11 should be extended stantially concaved portion 8, to assist in its a sufficient distance along the top of the comsupport, there is a rear bridge-wall 9, while bustion-chamber 7 to protect the under side beneath said substantially concaved portion of the boiler and to prevent the deposit of I00 8 and between the bridgewvalls 2 and 9 there carbon thereon, where it would remain unmay be placed a filling 10 of any suitable maconsumed.

. being meanwhile retarded in their outward passage and retained in the forward end of the combustion-chamber a suificient length of time to insure complete or perfect combustion. From the rear end of the combustionchamber the smoke passes outward and through the ordinary boiler-fines to the stack. While the products of combustion are being consumed in the chamber 7 there can be no carbon deposited upon the heated metal surfaces of the boiler, the same being protected by the refractory roof 1], and thus all deposit of carbon on the heated surfaces of the boiler is effectually prevented, all the carbon in the products 'of combustion being completely consumed. In this manner there is effected a large economy of fuel and the steaming capacity of the boiler is greatly increased.

The baffle or arch 12 assists in supporting the steam-boiler 5,and a further support may be provided by means of an inverted arch 16, extended upward from the bridge-wall 2, as shown.

It has been the constant aim of steam-engineers to produce a steam-boiler furnace which will consume all of the fuel, and thus utilize the full heating capacity of the same, generating the greatest possible amount of steam from the fuel used andavoiding any waste thereof. Many attempts have been made to accomplish this valuable result, and r they have been attended with more or less success; but in no prior steam-boiler furnace of which I am aware have these ends been fully attained. By my invention I produce a steam-boiler furnace in which by the construction and arrangement of the furnace as an entirety the combustible fuel, which to a greater or less extent heretofore has passed out with the smoke and been lost, is retarded or held back in a combustion-chamber by means of the form of the floor thereof and a baffle arranged in connection therewith and while so retarded or held is consumed beneath the steam-boilerand the heat produced by the consumption thereof utilized in the genera tion of steam. The complete combustion in the combustion-chamber of this combustible fuel, which has heretofore been to a great ex tent lost, is accomplished by constructing the floor of the chamber with its upper face substantially concaved and also by providing a eonca ved roof, which receives and closely h ugs the under side of the boiler, so that the products of combustion are absolutely precluded from passing between the roof and the boiler, as in case they do deposits of carbon are formed on the boiler, which it is desired especially to avoid for the reasons hereinbefore set forth. Besides this the roof, being of refractory material, becomes highly heated and being directly against the boiler applies its heat to the latter.

What I claim as my invention is In a steam-boiler furnace, the herein-described combustion-chamber located beneath the boiler said combustion-cl1amber having a substantially ooncaved floor of refractory material and a roof of refractory material concaved to receive and closely hug the under side of the boiler, and a baffle depending from said roof toward the substantially concaved floor to cooperate therewith in retarding the products of combustion.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN ODEN MORRIS.

Witnesses:

GEO. E. SULLIVAN, H. O. MEYNES. 

